2005-2007 Antares Drilling

(last updated 04/08/2009)

Antares has conducted reverse-circulation and diamond core drilling from November 2005 through December 2007 (Table 1). To date, Antares has completed 56 reverse circulation drill holes for a total of 8,465 m. The Antares RVC drill holes are denoted by the prefix of AHAC and include holes numbered from AHAC-056 through AHAC-110 (continuing from the last PD drill hole number).

Drilling was completed by AK Drilling Peru S.A.C. utilizing two drill rigs, a buggy-mounted Foremost W-750 and a conventional truck-mounted Schramm T660H. As with previous drilling by PD, abundant water was an issue at, and below, 90 to 100m for many of the drill holes. Nevertheless, the sample recovery was generally greater than 85%; holes that had poor recovery were terminated. Samples were collected in 2-m intervals for the all holes.

Between 2005 and 2007, Antares completed 88 diamond core drill holes for a total of 19,969 m (Tables 2, 3 and 4). The Antares diamond core drill holes are denoted by the prefix of AHAD and include holes numbered from AHAD-024 through AHAD-110 (continuing from the last PD drill-hole number). The 2005 drilling was completed by AK Drilling Peru S.A.C. utilizing a track mounted UDR650 drill rig. The entire core collected was HQ diameter (6.35-cm diameter). The 2006 diamond drilling was completed by Geotec Peru S.A.C. utilizing two Christianson 3001 truck-mounted drill rigs. The entire core was HQ diameter (6.35-cm diameter). The 2007 diamond drilling was completed by Geotec Peru S.A.C and AK Drilling Peru S.A.C. utilizing Christianson and UDR truck-mounted rigs 3 rigs drilling at a time. Drilling in 2007 went to considerable greater depths than previous years and core consists of both HQ (6.35-cm) and NQ (4.75-cm) diameters. Sampling intervals were determined by changes in lithology, alteration, or mineralization and vary from 1 to 3 m in length. Overall sample recovery was very good with only a few isolated intervals with less than 90% recovery.

Most of the 2007 drilling was completed at the Haquira East deposit, where the focus was testing the primary sulphide zone, and providing some infill drilling to move potentially leachable material from the inferred classification to the measured/indicated class.

Table 1: 2005-2007 Haquira Drill Hole Summary

Table 2: 2005 Drill Hole Collar Information.

Table 3: 2006 Drill Hole Collar Information.

Table 4: 2007 Drill Hole Collar Information.

Figure 1: Drill hole location map for all drill holes 2001-2008.

Figure 2: Haquira East and Potato Patch drill hole location map 2001-2008.